Geocaching – This cool website “is a high-tech treasure hunting game played throughout the world by adventure seekers equipped with GPS devices. The basic idea is to locate hidden containers called, geocaches, outdoors and then share your experiences online.”

When I first heard of this concept my response was that this is a cool idea, but it will only work if people would really commit to it and actively participate. Despite my mild skepticism, Geocaching is alive and kicking; there are currently 1,036,739 active participants around the globe. So get your GPS and search for the treasure!